fastball

Baseball a pitch thrown with great velocity and that travels in a relatively straight line

fastball

noun

Baseball

A pitch thrown at the pitcher's maximum speed.

fastball

Noun

(plural fastballs)

(baseball) Any of the variations of high speed pitches thrown in baseball

(baseball) A four-seam fastball, which is a backspin pitch thrown with a ball gripped in the direction to cause four of the seams of the ball to cross the flight path and released with roughly equal pressure by the index and middle fingers